@stryker-mutator/core
Version:
The extendable JavaScript mutation testing framework
47 lines • 2.15 kB
JavaScript
import os from 'os';
import { ReplaySubject, range } from 'rxjs';
import { tokens } from 'typed-inject';
import { commonTokens } from '@stryker-mutator/api/plugin';
export class ConcurrencyTokenProvider {
get testRunnerToken$() {
return this.testRunnerTokenSubject;
}
constructor(options, log) {
var _a;
this.log = log;
this.testRunnerTokenSubject = new ReplaySubject();
this.count = 0;
const cpuCount = os.cpus().length;
const concurrency = (_a = options.concurrency) !== null && _a !== void 0 ? _a : (cpuCount > 4 ? cpuCount - 1 : cpuCount);
if (options.checkers.length > 0) {
this.concurrencyCheckers = Math.max(Math.ceil(concurrency / 2), 1);
this.checkerToken$ = range(this.concurrencyCheckers);
this.concurrencyTestRunners = Math.max(Math.floor(concurrency / 2), 1);
log.info('Creating %s checker process(es) and %s test runner process(es).', this.concurrencyCheckers, this.concurrencyTestRunners);
}
else {
this.concurrencyCheckers = 0;
this.checkerToken$ = range(1); // at least one checker, the `CheckerFacade` will not create worker process.
this.concurrencyTestRunners = concurrency;
log.info('Creating %s test runner process(es).', this.concurrencyTestRunners);
}
Array.from({ length: this.concurrencyTestRunners }).forEach(() => this.testRunnerTokenSubject.next(this.tick()));
}
freeCheckers() {
if (this.concurrencyCheckers > 0) {
this.log.debug('Checking done, creating %s additional test runner process(es)', this.concurrencyCheckers);
for (let i = 0; i < this.concurrencyCheckers; i++) {
this.testRunnerTokenSubject.next(this.tick());
}
this.testRunnerTokenSubject.complete();
}
}
tick() {
return this.count++;
}
dispose() {
this.testRunnerTokenSubject.complete();
}
}
ConcurrencyTokenProvider.inject = tokens(commonTokens.options, commonTokens.logger);
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